CN117587862A - Automatic monitoring device for foundation pit deformation - Google Patents

Abstract

The application relates to a foundation ditch warp automatic monitoring device, it relates to foundation ditch survey equipment technical field, it includes bracing piece and laser receiver, the bracing piece sets up in the foundation ditch bottom, be equipped with adjusting unit on the bracing piece, be equipped with laser emitter on the adjusting unit, laser receiver sets up on the outlying stable structure of foundation ditch, laser receiver sets up along vertical direction, adjusting unit is used for adjusting laser emitter and laser receiver to align, be equipped with on the bracing piece and be used for driving laser emitter pivoted rotation unit, be equipped with the time switch that is used for the interval to open or close laser emitter on the bracing piece, laser receiver is used for receiving laser signal that laser emitter sent at every turn, and calculate adjacent twice laser signal's interval length. The foundation pit deformation monitoring system has the advantages that the foundation pit deformation monitoring system is not limited by weather, environment and working time, and timeliness of foundation pit deformation monitoring data can be improved.

Description

Automatic monitoring device for foundation pit deformation

Technical Field

The application relates to the technical field of foundation pit surveying equipment, in particular to an automatic foundation pit deformation monitoring device.

Background

At present, along with the continuous promotion of urban construction, foundation pit engineering is increasingly important in cities, a series of potential safety hazards exist in foundation pit engineering in construction, and foundation pit monitoring becomes an indispensable work for guaranteeing the safety of constructors and the stability of surrounding environments. In the process of foundation pit deformation, the stress field balanced by the original soil is destroyed after the foundation pit is excavated at the bottom of the foundation pit, and the substrate is rebounded after unloading. Before the foundation pit is excavated, the undisturbed soil forms a stable stress field and deformation, and as the excavation of the soil body is the unloading process of the soil body, the stress field and the balance state of the original soil body are destroyed, the foundation bed is rebounded to form a bulge, and the foundation pit is instable along with the increase of the bulge amount, which is not allowed to occur in the foundation pit construction, so that the bulge at the bottom of the foundation pit also becomes one of foundation pit deformation detection, and the soil layer displacement at the bottom of the foundation pit needs to be monitored at regular time.

The traditional foundation pit deformation monitoring generally adopts to set up the monitoring point around the foundation pit earlier, then monitor personnel and measure the change of the angle between foundation pit bottom and the monitoring point through monitoring facilities in different time, monitor personnel and receive weather, environment when measuring, operating time's influence, the longer phenomenon of monitoring time interval can appear, leads to relevant monitoring data's hysteresis quality great.

Disclosure of Invention

In order to solve the problems that monitoring personnel monitor time intervals are longer, and the hysteresis of monitoring data of the uplift deformation of the bottom of the foundation pit is larger, the application provides an automatic monitoring device for the deformation of the foundation pit.

The application provides a foundation ditch deformation automatic monitoring device adopts following technical scheme:

the utility model provides an automatic monitoring device of foundation ditch deformation, includes bracing piece and laser receiver, the bracing piece sets up in the foundation ditch bottom, be equipped with adjustment unit on the bracing piece, be equipped with laser emitter on the adjustment unit, the laser receiver sets up on the peripheral stable structure of foundation ditch, laser receiver sets up along vertical direction, adjustment unit is used for adjusting laser emitter with laser receiver aligns, be equipped with on the bracing piece and be used for the drive laser emitter pivoted rotation unit, be equipped with on the bracing piece and be used for the interval to open or close laser emitter's time switch, laser receiver is used for receiving laser emitter sends at every turn to calculate adjacent twice laser signal's interval length.

Through adopting above-mentioned technical scheme, when monitoring foundation ditch bottom uplift, install the bracing piece in the foundation ditch, then install laser receiver on the peripheral stable structure of foundation ditch, then adjust laser emitter's deflection angle through adjusting unit and rotation unit, let laser emitter and laser receiver align, then start laser emitter through the time switch interval, the uplift of foundation ditch bottom can drive laser emitter position and rise, laser emitter shines the position on the laser receiver and rise, distance between the position that receives laser signal through laser receiver at every turn, thereby the distance of foundation ditch uplift at every turn is obtained, thereby realize the automatic monitoring to foundation ditch bottom uplift deformation, compared with manual monitoring's mode, this scheme does not receive weather, environment and operating time's restriction, can improve the timeliness of foundation ditch bottom uplift deformation monitoring data.

In a specific embodiment, the rotating unit includes a rotating plate and a rotating motor, the rotating plate is rotatably disposed on the supporting rod, the laser transmitter is disposed on the rotating plate, the rotating plate can drive the laser transmitter to rotate in a plane perpendicular to the supporting rod, and an output shaft of the rotating motor is connected with the rotating plate.

Through adopting above-mentioned technical scheme, when adjusting laser emitter's orientation, drive the pivoted board through rotating the motor and rotate, can adjust laser emitter and laser receiver and be in the coplanar, realize the regulation to mechanism receiver position, rotate the motor simultaneously and drive laser emitter and rotate for laser receiver can be swept to the laser signal, reduce the influence of foundation ditch bottom soil layer horizontal displacement to laser receiver reception laser signal.

In a specific embodiment, the adjusting unit includes a rotation shaft and a locking member, a rotation support is provided on the rotation plate, the rotation shaft is fixedly provided on the laser emitter, the rotation shaft and the rotation support are rotatably provided, the laser emitter can rotate in a plane perpendicular to the rotation plate, and a locking unit for locking the rotation shaft is provided on the rotation support.

Through adopting above-mentioned technical scheme, when the pivoted board is adjusted the back to laser emitter, operating personnel rotates laser emitter, and laser emitter passes through the axis of rotation and rotates at the rotation support, aligns laser emitter and laser receiver, then fixes laser emitter through locking element to realize the alignment to laser emitter and laser receiver.

In a specific implementation manner, the locking unit comprises a locking sleeve, a locking rod and a locking piece, wherein the locking sleeve is arranged on the rotating support, the locking rod is inserted into the rotating shaft and is in threaded connection with the rotating shaft, the axes of the locking sleeve, the locking rod and the rotating shaft are collinear, the locking rod is inserted into the locking sleeve, a sliding through hole is formed in the locking sleeve along the axial direction of the locking rod, a limiting block used for sliding in the sliding through hole is arranged on the locking rod, the limiting block extends out of the sliding through hole, the locking piece is arranged on the locking sleeve, and the limiting block can be fixed in the sliding through hole by the locking piece.

Through adopting above-mentioned technical scheme, when rotating laser emitter, the axis of rotation rotates along with laser emitter, and the dead lever passes through stopper and the cooperation of the through-hole that slides for the axis of rotation drives the dead lever and slides along locking telescopic axial, accomplishes the back when laser emitter's angle modulation, fixes the stopper through the locking piece, fixes the dead lever when the stopper is fixed, and the dead lever can't slide and makes the axis of rotation unable rotation this moment, thereby accomplishes the fixed to the laser emitter orientation.

In a specific embodiment, the locking member comprises two sets of locking nuts. The two groups of locking nuts are sleeved on the locking sleeve in a threaded mode, the two groups of locking nuts are respectively arranged on two sides of the limiting block, and the limiting block can be abutted against the locking nut at the same time.

Through adopting above-mentioned technical scheme, when laser emitter aligns with laser receiver, revolve two sets of locking nuts for two sets of locking nuts extrusion stopper, the slip of restriction stopper in the through-hole that slides, thereby realize the fixed to the stopper.

In a specific implementation manner, the foundation pit side slope monitoring device further comprises a monitoring rod which is used for being inserted into the foundation pit side slope, wherein the monitoring rod is perpendicular to the supporting rod, a monitoring frame is arranged on the supporting rod, the monitoring rod is inserted into the monitoring frame, and a monitoring unit used for monitoring displacement of the monitoring rod is arranged on the monitoring frame.

Through adopting above-mentioned technical scheme, when monitoring the foundation ditch, insert the side slope of foundation ditch edge with the monitor rod in, the one end of monitor rod stretches into in the monitoring frame, the foundation ditch side slope can be moved towards in the foundation ditch, the monitor rod can be along with the foundation ditch side slope removal, through the monitoring of monitoring unit to monitor the monitor rod displacement, can monitor the removal deformation of foundation ditch side slope to improve the security of construction in the foundation ditch.

In a specific embodiment, the number of the monitoring units is a plurality, and the plurality of the monitoring units are uniformly arranged along the circumferential direction of the monitoring frame.

Through adopting above-mentioned technical scheme, through setting up a plurality of monitoring unit, can monitor a plurality of displacement directions of foundation ditch side slope to be convenient for follow-up to the processing of foundation ditch side slope displacement deformation.

In a specific implementation manner, the monitoring unit comprises a measuring rope, a monitoring block and an alarm device, wherein the monitoring block is arranged on the monitoring frame in a sliding manner, one end of the measuring rope is connected with the monitoring rod, the other end of the measuring rope is connected with the monitoring block, a first contact of an external power supply is arranged on the monitoring block, a second contact electrically connected with the alarm device is arranged on the monitoring frame, and the first contact is contacted with the second contact, so that a passage is formed between the alarm device and the external power supply.

Through adopting above-mentioned technical scheme, when foundation ditch side slope takes place displacement deformation, the monitoring pole can stimulate the measuring rope and remove, and measuring rope pulling monitoring piece slides, along with the continuous displacement deformation of foundation ditch side slope, first contact and the contact on the measuring rope pulling monitoring piece for alarm device circular telegram, alarm device sends out the alarm, thereby can improve the security of construction in the foundation ditch.

In a specific implementation mode, a wind-up roller is rotatably arranged on the monitoring block, the measuring rope is fixed on and wound on the wind-up roller, a worm wheel is coaxially arranged on the wind-up roller, and a worm meshed with the worm wheel is rotatably arranged on the monitoring block.

Through adopting above-mentioned technical scheme, operating personnel can drive the worm wheel through rotating the worm and rotate, and the worm wheel rotates and drives the wind-up roll to measuring the rolling of rope and open to adjust the initial distance between monitoring piece and the monitor rod, thereby can be to when alarm device reports to the police, foundation ditch side slope displacement warp degree adjusts, thereby can be suitable for the monitoring and the early warning of foundation ditch side slope displacement warp under the different operating modes.

In a specific embodiment, an extension spring is provided on the monitoring frame, one end of the extension spring is connected with the monitoring block, and the extension spring is used for pulling the monitoring block, so that the measuring rope is kept tight.

Through adopting above-mentioned technical scheme, through extension spring tensile monitoring piece make the measurement rope keep taut, can improve the accuracy of adjusting the distance between monitoring piece and the monitor rod.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the bulge deformation of the bottom of the foundation pit is monitored, the supporting rod is installed in the foundation pit, the laser receiver is installed on a stable structure on the periphery of the foundation pit, then the deflection angle of the laser transmitter is regulated through the regulating unit and the rotating unit, the laser transmitter is aligned with the laser receiver, the laser transmitter is started at a timing switch starting interval, and the distance between the positions of the laser receiver receiving laser signals each time is used for obtaining the bulge distance of the foundation pit each time, so that the bulge deformation of the bottom of the foundation pit is automatically monitored, and the scheme is not limited by weather, environment and working time and can improve the timeliness of the deformation monitoring data of the foundation pit;

2. when foundation ditch side slope takes place displacement deformation, the monitoring pole can stimulate the measuring rope and remove, and measuring rope pulls the monitoring piece and slides, and along with the continuous displacement deformation of foundation ditch side slope, the first contact on the measuring rope pulling monitoring piece contacts with the second contact for alarm device circular telegram, alarm device sends out the alarm, thereby can improve the security of construction in the foundation ditch.

Drawings

Fig. 1 is a schematic structural diagram of an automatic foundation pit deformation monitoring device according to an embodiment of the present application.

Fig. 2 is a schematic view for showing the structure of the rotation unit.

Fig. 3 is a cross-sectional view taken along line A-A of fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 1.

Fig. 5 is an enlarged view of a portion C in fig. 1.

Fig. 6 is a schematic diagram for showing the structure of the monitoring block.

Fig. 7 is a schematic view for showing the structure of the tension spring.

Fig. 8 is an enlarged view of the portion D in fig. 6.

Reference numerals illustrate: 1. a foundation pit; 11. foundation pit side slope; 21. a support rod; 22. a laser receiver; 23. a monitoring rod; 24. a stable structure; 25. a laser emitter; 26. a timing switch; 3. an adjusting unit; 31. a rotating shaft; 32. a locking unit; 321. a locking sleeve; 322. a locking lever; 323. a locking member; 3231. a lock nut; 324. a thread groove; 325. a sliding through hole; 326. a limiting block; 4. a rotation unit; 41. a rotating plate; 42. a rotating motor; 43. a drive gear; 44. a connecting gear; 45. rotating the support; 51. monitoring the frame; 52. a monitoring unit; 521. measuring ropes; 522. a monitoring block; 523. an alarm device; 524. a displacement sensor; 53. a support block; 54. a tension spring; 55. a sliding cavity; 551. a wind-up roll; 552. a worm wheel; 553. a worm; 56. a bar-shaped hole; 571. a first contact; 572. and a second contact.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-8.

The embodiment of the application discloses foundation ditch deformation automatic monitoring device.

Referring to fig. 1, a foundation pit deformation automatic monitoring device includes bracing piece 21, laser receiver 22 and monitor rod 23, bracing piece 21 can set up a plurality of in foundation pit 1, set up in different positions, every bracing piece 21 all sets up along vertical direction, laser receiver 22 sets up on foundation pit 1 outlying stable structure 24, stable structure 24 can select on the building far away from foundation pit 1, in order to ensure that this building can not receive the influence of foundation pit 1, be equipped with adjusting unit 3 on the top of bracing piece 21, be equipped with laser emitter 25 on the adjusting unit 3, laser receiver 22 sets up along vertical direction, laser receiver 22 inside is equipped with a plurality of receiver points, set up certain distance between every two receiver points, adjusting unit 3 is used for adjusting laser emitter 25 and receiver alignment, be equipped with the rotary unit 4 that is used for driving laser emitter 25 pivoted on the bracing piece 21, be equipped with time switch 26 on the bracing piece 21, time switch 26 can regularly start laser emitter 25, time switch 26 sets up's start-up interval time can be adjusted, laser receiver 22 is used for receiving laser emitter 25's signal at every turn, the time receiver 22 is equipped with a plurality of receiver points through the different receiver points, every turn-up interval distance between the laser emitter 25 at every turn.

When the bottom of foundation ditch 1 is uplifted, laser emitter 25 can shift up along with the foundation ditch 1 uplift, when monitoring the uplift of foundation ditch 1 bottom, install bracing piece 21 in foundation ditch 1, then install laser receiver 22 on the outlying stable structure 24 of foundation ditch 1, then adjust the deflection angle of laser emitter 25 through adjusting unit 3 and rotation unit 4, let laser emitter 25 and laser receiver 22 align, then start laser emitter 25 through the time switch 26 interval, laser emitter 25 shines the position on laser receiver 22 and shift up, distance between the position that receives the laser signal through laser receiver 22 at every turn, thereby obtain the distance of every turn uplift of foundation ditch 1 bottom, thereby realize the automatic monitoring to foundation ditch 1 bottom uplift deformation, compared with manual monitoring's mode, this scheme does not receive weather, environment and operating time's restriction, can improve the timeliness of foundation ditch 1 bottom uplift monitoring data.

Referring to fig. 2, 3 and 4, the rotating unit 4 in this embodiment includes a rotating plate 41 and a rotating motor 42, the rotating plate 41 is rotatably disposed at the top of the supporting rod 21, the rotating plate 41 is vertically disposed with the supporting rod 21, the rotating motor 42 is fixedly disposed on the supporting rod 21, a driving gear 43 is coaxially and fixedly disposed at the output shaft of the rotating motor 42, a connecting gear 44 is disposed at the bottom of the rotating plate 41, a rotation center of the connecting gear 44 is collinear with a rotation center of the rotating plate 41, the driving gear 43 is meshed with the connecting gear 44, a rotating support 45 is fixedly disposed at the top of the rotating plate 41, a timing switch 26 is electrically connected with the rotating motor 42, the timing switch 26 controls the start of the rotating motor 42 at the same time, the rotating motor 42 can be started by itself or can be started at a timing by the timing switch 26, the adjusting unit 3 in this embodiment includes a rotating shaft 31 fixedly disposed on the laser transmitter 25, the other end of the rotating shaft 31 is inserted into the rotating support 45 and rotatably disposed with the rotating support 45, and a locking unit 32 for fixing the rotating shaft 31 is disposed on the rotating support 45.

Referring to fig. 2, 3 and 4, the locking unit 32 in this embodiment includes a locking sleeve 321, a locking rod 322 and a locking piece 323, the locking sleeve 321 is fixedly disposed on one side of the rotating support 45 facing away from the laser transmitter 25, the axis of the locking sleeve 321 is collinear with the axis of the rotating shaft 31, the locking rod 322 is disposed in the locking sleeve 321, the axis of the locking rod 322 is collinear with the axis of the rotating shaft 31, the rotating shaft 31 is provided with a thread groove 324 at one end near the locking sleeve 321, an internal thread is disposed on the wall of the thread groove 324, one end of the locking rod 322 is inserted into the thread groove 324 and is provided with an external thread engaged with the internal thread, the depth of the thread groove 324 is greater than the maximum length of the locking rod 322 sliding in the thread groove 324, two sliding through holes 325 are disposed on the locking sleeve 321, two sliding through holes 325 are uniformly disposed along the axial direction of the locking sleeve 321, each sliding through hole 325 is disposed along the axial direction of the locking sleeve 321, two limiting blocks 326 are fixedly disposed on the locking rod 322, the limiting blocks 326 are in one-to-one correspondence with the sliding through holes 325, the limiting blocks 326 penetrate through the through holes 325 and extend out of the locking sleeve 321, the locking piece 323 is disposed on the locking sleeve 321, the wall, the depth of the locking piece 324 is greater than the depth than the maximum length of the limiting block can be fixed in the through holes 325.

Referring to fig. 2, the locking member 323 in the present embodiment includes two sets of locking nuts 3231, one set of locking nuts 3231 in the present embodiment, each locking nut 3231 is sleeved on the locking sleeve 321 and is in threaded connection with the locking sleeve 321, and the two sets of locking nuts 3231 are respectively disposed at two sides of the limiting block 326.

When adjusting laser emitter 25, earlier through drive rotation motor 42 rotation, rotation motor 42 drives rotation board 41 rotation through the meshing of drive gear 43 and connecting gear 44, rotation board 41 drives rotation support 45 rotation, make laser emitter 25 and laser receiver 22 be in the coplanar, then operating personnel rotates laser emitter 25, adjust the emitting end of laser emitter 25 and the bottom receiving point alignment of laser receiver 22, when laser emitter 25 rotates, drive axis of rotation 31 rotation, axis of rotation 31 drives locking lever 322 through the threaded connection with locking lever 322 and removes, because stopper 326 on the locking lever 322 inserts in the through-hole 325 that slides, thereby make axis of rotation 31 drive locking lever 322 and slide, stopper 326 slides along the through-hole 325 that slides, through aligning laser emitter 25 and laser receiver 22, improve monitoring devices's stability to foundation ditch 1 uplift monitoring.

After laser transmitter 25 aligns with laser receiver 22, operating personnel revolves two sets of locking nut 3231, presss from both sides tightly stopper 326 to fix the slip of stopper 326, and then fix the orientation of laser transmitter 25, this scheme can fix the arbitrary rotation angle of laser transmitter 25, thereby improves the flexibility that laser transmitter 25 angle was adjusted.

When the timing switch 26 starts the laser transmitter 25, the timing switch 26 simultaneously starts the rotating motor 42, and the rotating motor 42 drives the laser transmitter 25 to rotate, so that the influence of horizontal displacement of the bottom of the foundation pit 1 on the laser receiver 22 to receive laser signals can be reduced, the laser receiver 22 can receive the laser signals, and the stability of monitoring of the bulge deformation of the bottom of the foundation pit 1 is improved.

Referring to fig. 1 and 5, the monitoring rod 23 is horizontally inserted into the foundation pit side slope 11, the monitoring rod 23 is located at the top of the foundation pit side slope 11, one end of the monitoring rod 23 leaks out of the soil layer and stretches into the foundation pit 1, the monitoring frame 51 is fixedly arranged on the supporting rod 21, the monitoring frame 51 in the embodiment is a rectangular frame, one end of the monitoring rod 23 stretching into the foundation pit 1 is inserted into the monitoring frame 51, a plurality of monitoring units 52 are arranged on the monitoring frame 51, four supporting blocks 53 are fixedly arranged on the monitoring frame 51, the four supporting blocks 53 are respectively arranged on four sides of the monitoring frame 51, the number of the monitoring units 52 in the embodiment is four, the monitoring units 52 correspond to the supporting blocks 53 one by one, a sliding cavity 55 is formed in each supporting block 53, and one end of the sliding cavity 55 penetrates into the monitoring frame 51.

Referring to fig. 5, 6 and 7, each monitoring unit 52 in this embodiment includes a measuring rope 521, a monitoring block 522 and an alarm device 523, the alarm device 523 is fixedly disposed on the supporting rod 21, the monitoring block 522 is slidably disposed in the sliding cavity 55, a tension spring 54 is disposed on a side wall of the sliding cavity 55, one end of the tension spring 54 is fixedly connected with the side wall of the sliding cavity 55, the other end of the tension spring 54 is fixedly connected with the monitoring block 522, and the tension spring 54 is disposed on a side of the monitoring block 522 facing away from the monitoring rod 23.

Referring to fig. 6 and 8, a wind-up roller 551 is rotatably disposed on each monitoring block 522, the wind-up roller 551 is disposed on the monitoring block 522 through a support, one end of the measuring rope 521 is fixedly connected to the monitoring rod 23, the other end of the measuring rope 521 extends into the sliding cavity 55 and is then fixed and wound on the wind-up roller 551, a worm wheel 552 is coaxially and fixedly disposed on the wind-up roller 551, a worm 553 is disposed on the monitoring block 522, one end of the worm 553 is inserted into the monitoring block 522 and rotatably disposed on the monitoring block 522, the worm 553 is meshed with the worm wheel 552, a strip-shaped hole 56 which is communicated with the sliding cavity 55 is disposed on an outer side wall of the supporting block 53, one end of the worm 553, which is far from the monitoring block 522, extends out of the supporting block 53 through the strip-shaped hole 56, and the worm 553 can slide in the strip-shaped hole 56.

Referring to fig. 8, a first contact 571 is disposed on the monitoring block 522, the first contact 571 is electrically connected with an external power supply, a second contact 572 is disposed on the supporting block 53, the second contact 572 is electrically connected with a terminal of the alarm device 523, a displacement sensor 524 is disposed on the monitoring block 522, a transmitting end of the displacement sensor 524 points to the second contact 572, the displacement sensor 524 is used for measuring a distance between the first contact 571 and the second contact 572, when the first contact 571 contacts with the second contact 572, a path is formed between the alarm device 523 and the external power supply, and the alarm device 523 generates an alarm.

The foundation pit slope 11 can gradually carry out displacement deformation towards the inside of the foundation pit 1 along with the progress of time, influence the safety of constructors in the foundation pit 1, when monitoring the displacement deformation of the foundation pit slope 11, insert the monitoring rod 23 into the foundation pit slope 11, then the foundation pit slope 11 drives the monitoring rod 23 to displace, the monitoring rod 23 pulls the monitoring block 522 to move through the measuring rope 521, the distance between the monitoring block 522 and the second contact 572 can be detected through the timing start displacement sensor 524, so that the distance of each displacement of the foundation pit slope 11 is monitored, when an emergency occurs in the monitoring time interval, a large number of displacements are generated on the foundation pit slope 11, the first contact 571 and the second contact 572 on the monitoring block 522 are pulled by the measuring rope 521, and the alarm device 523 is electrified at the moment, so that an alarm is sent out, and the safety of the constructors in the foundation pit 1 is ensured.

An operator can drive the worm wheel 552 to rotate through the rotating worm 553, and the worm wheel 552 rotates to drive the wind-up roller 551 to wind and open the measuring rope 521, so that the initial distance between the monitoring block 522 and the monitoring rod 23 is adjusted, and the degree of displacement deformation of the foundation pit side slope 11 can be adjusted when the alarm device 523 alarms, so that the monitoring and early warning of the displacement deformation of the foundation pit side slope 11 under different working conditions are applicable.

When the monitoring rod 23 is displaced, the monitoring rod 23 pulls the measuring rope 521 in the displacement direction to move, so that an operator can judge the movement deformation direction of the foundation pit slope 11 through the alarming direction, and the follow-up treatment of the displacement deformation of the foundation pit slope 11 is facilitated.

The implementation principle of the foundation pit deformation automatic monitoring device provided by the embodiment of the application is as follows: when monitoring the bottom uplift deformation of the foundation pit 1, install bracing piece 21 in the foundation pit 1, then install laser receiver 22 on the peripheral stable structure 24 of foundation pit 1, then adjust the deflection angle of laser emitter 25 through adjusting unit 3 and rotation unit 4, let laser emitter 25 and laser receiver 22 align, then start interval start laser emitter 25 through timing switch 26, the bottom uplift of foundation pit 1 can drive laser emitter 25 position and shift up, laser emitter 25 shines the position on the laser receiver 22, distance between the position that laser receiver 22 received the laser signal at every turn, thereby obtain the distance of foundation pit 1 bottom uplift at every turn, thereby realize the automatic monitoring to foundation pit 1 deformation, compared with manual monitoring's mode, this scheme does not receive weather, environment and operating time's restriction, can improve the timeliness of foundation pit 1 uplift monitoring.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a foundation ditch warp automatic monitoring device which characterized in that: including bracing piece (21) and laser receiver (22), bracing piece (21) set up in foundation ditch (1) bottom, be equipped with on bracing piece (21) regulating unit (3), be equipped with laser emitter (25) on regulating unit (3), laser receiver (22) set up on foundation ditch (1) outlying stable structure (24), laser receiver (22) set up along vertical direction, regulating unit (3) are used for adjusting laser emitter (25) with laser receiver (22) are aligned, be equipped with on bracing piece (21) and be used for the drive laser emitter (25) pivoted rotation unit (4), be equipped with on bracing piece (21) and be used for the interval to open or close laser emitter (25) timing switch (26), laser receiver (22) are used for receiving laser signal that laser emitter (25) sent at every turn to calculate adjacent twice laser signal's interval length.

2. The automatic foundation pit deformation monitoring device according to claim 1, wherein: the rotating unit (4) comprises a rotating plate (41) and a rotating motor (42), the rotating plate (41) is rotatably arranged on the supporting rod (21), the laser transmitter (25) is arranged on the rotating plate (41), the rotating plate (41) can drive the laser transmitter (25) to rotate in a plane perpendicular to the supporting rod (21), and an output shaft of the rotating motor (42) is connected with the rotating plate (41).

3. The automatic foundation pit deformation monitoring device according to claim 2, wherein: the adjusting unit (3) comprises a rotating shaft (31) and a locking piece (323), a rotating support (45) is arranged on the rotating plate (41), the rotating shaft (31) is fixedly arranged on the laser transmitter (25), the rotating shaft (31) and the rotating support (45) are rotatably arranged, the laser transmitter (25) can rotate in a plane perpendicular to the rotating plate (41), and a locking unit (32) for locking the rotating shaft (31) is arranged on the rotating support (45).

4. A foundation pit deformation automatic monitoring device according to claim 3, wherein: the utility model provides a locking unit (32) is including locking sleeve (321), locking lever (322) and locking piece (323), locking sleeve (321) set up on rotating support (45), locking lever (322) inserts axis of rotation (31), and with axis of rotation (31) threaded connection, locking sleeve (321), locking lever (322), axis collineation of axis of rotation (31) three, locking lever (322) insert in locking sleeve (321), sliding through hole (325) have been seted up on self axial to locking sleeve (321), be equipped with on locking lever (322) be used for sliding stopper (326) in sliding through hole (325), stopper (326) stretch out sliding through hole (325), locking piece (323) set up on locking sleeve (321), locking piece (323) can be with stopper (326) are fixed in sliding through hole (325).

5. The automatic foundation pit deformation monitoring device of claim 4, wherein: the locking piece (323) comprises two groups of locking nuts (3231), the two groups of locking nuts (3231) are sleeved on the locking sleeve (321) in a threaded mode, the two groups of locking nuts (3231) are respectively arranged on two sides of the limiting block (326), and the limiting block (326) can be abutted simultaneously.

6. The automatic foundation pit deformation monitoring device according to claim 1, wherein: still including being used for inserting monitoring pole (23) in foundation ditch side slope (11), monitoring pole (23) with bracing piece (21) perpendicular setting is equipped with monitoring frame (51) on bracing piece (21), monitoring pole (23) inserts monitoring frame (51), be equipped with on monitoring frame (51) and be used for monitoring unit (52) of monitoring pole (23) displacement.

7. The automatic foundation pit deformation monitoring device of claim 6, wherein: the number of the monitoring units (52) is a plurality of, and the plurality of the monitoring units (52) are uniformly arranged along the circumferential direction of the monitoring frame (51).

8. The automatic foundation pit deformation monitoring device of claim 7, wherein: the monitoring unit (52) comprises a measuring rope (521), a monitoring block (522) and an alarm device (523), wherein the monitoring block (522) is arranged on the monitoring frame (51) in a sliding mode, one end of the measuring rope (521) is connected with the monitoring rod (23), the other end of the measuring rope is connected with the monitoring block (522), a first contact (571) of an external power supply is arranged on the monitoring block (522), a second contact (572) electrically connected with the alarm device (523) is arranged on the monitoring frame (51), and the first contact (571) is in contact with the second contact (572) so that a passage is formed between the alarm device (523) and the external power supply.

9. The automatic foundation pit deformation monitoring device of claim 8, wherein: the monitoring block (522) is rotationally provided with a wind-up roller (551), the measuring rope (521) is fixed and wound on the wind-up roller (551), the winding drum is coaxially provided with a worm wheel (552), and the monitoring block (522) is rotationally provided with a worm (553) meshed with the worm wheel (552).

10. The automatic foundation pit deformation monitoring device of claim 8, wherein: the monitoring frame (51) is provided with an extension spring (54), one end of the extension spring (54) is connected with the monitoring block (522), and the extension spring (54) is used for pulling the monitoring block (522) so that the measuring rope (521) is kept tight.